Competition between spin-orbit interaction and Zeeman coupling in Rashba two-dimensional electron gases

F. E. Meijer, A. F. Morpurgo, T. M. Klapwijk, T. Koga, J. Nitta

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

We systematically investigate how the interplay between the Rashba spin-orbit interaction and Zeeman coupling affects the electron transport and the spin dynamics in InGaAs-based 2D electron gases. From the quantitative analysis of the magnetoconductance, measured in the presence of an in-plane magnetic field, we conclude that this interplay results in a spin-induced breaking of time reversal symmetry and in an enhancement of the spin relaxation time. Both effects are due to a partial alignment of the electron. spin along the applied magnetic field, and are found to be in excellent agreement with recent theoretical predictions.

Original languageEnglish
Article number201307
Pages (from-to)201307-1-201307-4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume70
Issue number20
DOIs
Publication statusPublished - 2004 Nov
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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